Household water purifier



FIG. 1 is a bottom view of a household water purifier showing the new design;

FIG. 2 is a top view thereof;

FIG. 3 is a right view thereof;

FIG. 4 is a front view thereof;

FIG. 5 is a left view thereof;

FIG. 6 is a rear view thereof; and,

FIG. 7 is a perspective view thereof. 

The ornamental design for a household water purifier, as shown and described. 